As living spiritual souls we are all originally Kṛṣṇa conscious entities, but due to our association with matter since time immemorial, our consciousness is now polluted by material atmosphere.

Srila Prabhupada - "When the superior energy is in contact with inferior energy, it becomes an incompatible situation. But when the supreme marginal potency (the jiva-souls) are in contact with the spiritual potency, Harā, it becomes the happy, normal condition of the living entity.

This transcendental vibration of chanting - 

Hare Kṛṣṇa, Hare Kṛṣṇa, Kṛṣṇa Kṛṣṇa, Hare Hare/ Hare Rāma, Hare Rāma, Rāma Rāma, Hare Hare

This is the sublime method for reviving our Kṛṣṇa consciousness. 

As living spiritual souls we are all originally Kṛṣṇa conscious entities, but due to our association with matter since time immemorial, our consciousness is now polluted by material atmosphere. 

In this polluted concept of live, we are all trying to exploit the resources of material nature, but actually we are becoming more and more entangled in her complexities. 

This illusion is called māyā, or hard struggle for existence over the stringent laws of material nature. 

This illusory struggle against the material nature can at once be stopped by revival of our Kṛṣṇa consciousness.

Kṛṣṇa consciousness is not an artificial imposition on the mind. This consciousness is the original energy of the living entity. 

When we hear the transcendental vibration, this consciousness is revived. And the process is recommended by authorities for this age. 

By practical experience also, we can perceive that by chanting this mahā-mantra, or the Great Chanting for Deliverance, one can at once feel transcendental ecstasy from the spiritual stratum. 

When one is factually on the plane of spiritual understanding, surpassing the stages of sense, mind and intelligence, one is situated on the transcendental plane. 

This chanting of Hare Kṛṣṇa, Hare Kṛṣṇa, Kṛṣṇa Kṛṣṇa, Hare Hare/ Hare Rāma, Hare Rāma, Rāma Rāma, Hare Hare is directly enacted from the spiritual platform, surpassing all lower states of consciousness namely sensual, mental and intellectual. 

There is no need of understanding the language of the mantra, nor is there any need of mental speculation nor any intellectual adjustment for chanting this mahā-mantra. 

It springs automatically from the spiritual platform, and as such, anyone can take part in this transcendental sound vibration, without any previous qualification, and dance in ecstasy.

We have seen it practically. Even a child can take part in the chanting, or even a dog can take part in it. 

The chanting should be heard, however, from the lips of a pure devotee of the Lord, so that immediate effect can be achieved. 

As far as possible, chanting from the lips of a nondevotee should be avoided, as much as milk touched by the lips of a serpent causes poisonous effect.

The word Harā is a form of addressing the energy of the Lord. Both Kṛṣṇa and Rāma are forms of addressing directly the Lord, and they mean "the highest pleasure, eternal." Harā is the supreme pleasure potency of the Lord. 

This potency, when addressed as Hare, helps us in reaching the Supreme Lord.

The material energy, called mayā, is also one of the multipotencies of the Lord, as much as we are also the marginal potency of the Lord. 

The "marginal living entities" (jiva-souls) are described as a superior energy than matter. 

When the superior energy is in contact with inferior energy, it becomes an incompatible situation but when the supreme marginal potency (jiva-souls) are in contact with the spiritual potency, Harā, it becomes the happy, normal condition of the living entity.

The three words, namely Harā, Kṛṣṇa and Rāma, are transcendental seeds of the mahā-mantra, and the chanting is a spiritual call for the Lord and His internal energy, Harā, for giving protection to the conditioned soul. 

The chanting is exactly like a genuine cry by the child for the mother. Mother Harā helps in achieving the grace of the supreme father, Hari, or Kṛṣṇa, and the Lord reveals Himself to such a sincere devotee.

No other means, therefore, of spiritual realization is as effective in this age, as chanting the mahā-mantra,

Hare Kṛṣṇa Hare Kṛṣṇa,

Kṛṣṇa Kṛṣṇa Hare Hare,

Hare Rāma Hare Rāma,

Rāma Rāma Hare Hare 

(Purport to Hare Krsna Mantra - as explained on the cover of the "Happening Record Album" Dec 1966 New York City, USA)